CholeskiInverse doesn't return the inverse matrix of the argument

[César Pérez Álvarez]

You can execute this example to see that CholeskiInverse doesn't return the
inverse matrix of the argument.
Matrix A = SetMat(SetOfSet
(

SetOfReal(1/4,1/8,1/9),
SetOfReal(1/8,1/8,1/9),
SetOfReal(1/9,1/9,1/9)

));

See that A is positive defined
Matrix A_ = CholeskiInverse(A);

You can see that this product doesn't return the identity matrix of dim 3
Matrix U = A*A_;

[danirus]

CholeskiInverse behavior, in matgra.cpp, has been rewritten to avoid confusing
internal casts in Win32 platform.
I have seen some complex and confused behavior in classes hierarchy of
BMatrix<Any>. I think that all of them should be rewritten.

[manuelb]

Moved to TOL product.